Sprinkler head



May 28, 1935. E E mo 2,003,052

SPRINKLER HEAD Filed Oct. 17, 1935 INVENTOR. Eowmao 5. Logo TTORNEYS.

Patented May 28, 1935 l SPRINKLERT'HEAD'; I Edward E."I lord,- 1 asadena, CalifQassignor of oneehalf to J.D.Ro ss,'Pasadena, Amalia October, 1933, Serial No. 93,977

' .2 Claims. (Chase- 141 1 1 a sprinkler head whose nozzle is so formed that during the swaging or upsetting operation, which occurs during the step of attaching the spray plate'to the nozzle, the material of thenozzle will not be fractured or injured in any manner.

For a more complete disclosure of the nature and objects of the invention, reference may now be had to the accompanying specification and drawing, in' which latter Figure 1 is a perspective of a nozzle produced by my improved method;

Figure 2 is a schematic view in elevation, showing the position of the nozzle during the swaging operation; r I

Figure 3 is a transverse section through the head;

Figure 4 is a view similar to Figure 3, showing the spray plate in position preparatory to the swaging of the marginal wall of the head over the marginal portionof the spray plate;

Figure 5 is a transverse section through the finished nozzle.

In Figure l of the drawing, I show a fan shaped spray nozzle 5 having a water intake branch 6 adapted to be connected in the usual manner with a hose, not shown. The spray end of said nozzle is of an elongated ovate form in plan and same is longitudinally curvedto describe an arc of circle, the medial portion of which coincides with an axial line A-B drawn through the nozzle as shown in Figure 2, so that the distance from C to D in the arc of the circle thus described is the same as that from D to E. In Figure 2, I show the nozzle 5 in a position such having parallel spaced apart inclined swaging faces 8-'8, and a corresponding connecting face 8a. These swaging faces 8 -8 are arcuate in form, the same as the corresponding part of the spray end of said nozzle. the die 1 is so proportioned as to come in striking contact with one-half only of the spray end of the nozzle during the swaging operation,

5 The spray end of the nozzle 5 is formed with as it would occupy when presenting same to a] vertically reciprocating swaging die 1, the latter It will be observed that a vertical U -shaped groove ofielongatedwvate 7;

form in plan. This groove is defined byzaniinner short wall In ,of uniform thickness throughout and a wall ll of greater-breadth;- than said .wall Ill. The wall ll extends laterally ofxa joinder 5 1 Wall l2 and same is of reducedthickness inthe directionof its free'edge [3 so as .toqprovidevthe prominently flared outer surfaces |4,j'the angle of whichisj considerably greater than that of the-swaging faces 8-8 and. 8a,'so that. when the 1 latter approach the surfaces. M, the reducedportion of the wall II will becam'med inwardly, as

will be appreciated on reference to Figure 4.

Now it will be noted that due to. the gradual reduction in the thickness of the wall II the part 15 of increased thickness thereof resides in the immediate vicinity of the joinder l2 and that due thereto the free edge portions of said wall I I may be cammed over and inwardly, or swaged without any material strain being placed upon the said 20 joinder I2. It is in view thereof that I amable to prevent fracturing of the nozzle structure such as might Weaken same or cause leakage of water from the structure, let us say immediately at said joinder I 2. 25 The spray plate [5 consists of a single piece of thin sheet brass, the general shape in plan of which is ovate and in such agreement withthe general contour of the spray end of the nozzle as to rather snugly fit into the space bounded by the wall H. Same is formed with a continuous angular flange [6 adapted to be'received in the continuous ovate groove 9, and same is of a depth I g calculated to bring the free edge of the wall III in abutment with the under surface of the afore- 35 said spray plate I5. This brings the upper face of said plate 15 slightly below the free edge of the wall I I. g

V I have now described the essential structural features which characterize the nozzle 5 and 4 shall therefore proceed to described the operation necessary to permanently attach the plate i5 to the spray end of said nozzle. In the groove 9, Figure 3, I place a quantity of water-proofing compound or cement 9a, after which the plate 45 I5 is applied so as to assume the position shown in Figure 4. I then position thenozzle 5 beneath the reciprocal swaging die I so as to present onehalf only of the spray end of the nozzle to said die. It will be noticed that in so doing, a line FG drawn diagonally through the die passes through the inclined face of the flange II as indicative of the diagonal line of force that is applied to the flange II as the die descends on a straight vertical line, thus swaging the reduced I portion of the flange ll over and inwardly and securely upsetting same against the portion I! of said plate I5. After I have thus attached onehalf of the plate l5 to the spray end of the nozzle as just described, I turn the nozzle aroundrone hundred eighty degrees and proceed with the operation as before. It is to be understood that during the operation of attaching the plate I5 to the nozzle, a rigid table or suitable support .is employed. upon}which the half portionio'i the nozzle which is directed presented to the die I may firmly rest. I find that by. swaging first one-half of the wall I] against the marginal portion of the plate I5, and then the other,-the plate may be permanently attached .to the-nozzlein a very uniform manner and 'in a wayr lwliich pree vents warping of buckling of the plate.

What I claim as my invention is:

1. A spray nozzle having a substantially. U- shaped groove defined by spaced apart'inner and miter walls, the breadth of the outer wall'being sumciently greater than tha't of the inner wall to causethe iree'edge of'the formerto extend an al'zpreclabl'e distance beyond the free edge of th'e lnner wall, and=a; spray-plateof uniform thickness ha ving -a continuousmarginal flange seated at said gro'ov'e, the said inner wall having its free edge abutting the under side of said plate and ;-'the said' outerwall being swaged inwardly and brought' into close engagement with the outer face of the plate marginally thereof to thereby firmly force'and confine the inner face of said plate against the free edge of said inner flange, the outer flange being of a gradually increasing thickness in the direction of the bottom of said groove and being connected with the inner wall bya laterally extending joinder wall so that the maximum wall thickness of the nozzle is located in the plane of:a straightiline drawn \through the joinderwall'and at rightangles'tothe axial center of the nozzle.

2. A spray nozzlecomprising a body having an 'ovateigroove defined in part by spaced apart inner and outer walls, the latter being of greater ibreadtn'than the former and connected therewith by alaterally extending joinder wall, the outer-wall :being of gradually increasing thickness toward said joinder wall, a spray plate of snuglyforce the inner surface o'flthep'late against 5 the edge of said inner wall-and apply pressure against the waterproofingfluid material to :dis-

uniform thickness having an ovate flange explace same into the joints-"between the flange andthe walls of thegroove.

' EDWARD 

